57results about How to "Restore and enhance biodiversity" patented technology

The invention relates to a method for restoring oil polluted wet land by combination of plant and microorganism. The method concretely includes: soil of oil polluted wet land to be restored is collected, autochthonous oil-munching bacterium screening is carried out by utilizing an inorganic salt culture medium containing the oil contamination, the culture and screening of autochthonous oil-munching bacterium are enlarged, and the autochthonous oil-munching bacterium is made into active bacterium preparation with OD600 of about 1.5 by adopting nutrition substrate with the urea concentration of 40g / L and the calcium superphosphate concentration of 15g / L; scripus triqueter seedling or scripus triqueter seed is planted in the oil polluted wetland soil, and planting density is 2500-5000 plants / m2; when seedling grows vigorously, the active bacterium preparation obtained by the step a is added into the root system soil planted with scripus triqueter seedling according to the mass ratio of about 100:1, when flowering period and mature period are finished, under the combined action of oil-munching bacteria and root system of plant, the oil polluted wet land is restored. Compared with the traditional soil management method, the method of the invention has the advantages of less investment, less work amount, low technical requirement and no secondary pollution. The restoring process not only can not destroy soil entironment but also is beneficial to improving soil degradation and productivity reduction which are caused by petroleum hydrocarbon pollution and recovering and improving biodiversity of soil.

The invention discloses a method for jointly repairing vegetation and application thereof. The method comprises the steps of: (1) planting shrubs; (2) covering soil, and sowing seedlings of resistant herbaceous plants or planting seedlings of herbaceous plants; and (3) sowing moss. The method has low cost and remarkable effect, can avoid or control the pollution of heavy metal, can avoid and fix sands or conserve water and soil, and plays an important part in protecting environment.

The invention relates to phytoremediation technology for treating polluted environment, in particular to a method for repairing and treating the earth polluted by cadmium by using a flower plant, namely maidenhair. The method utilizes root systems of the cadmium ultra-enriched flower maidenhair to absorb the enriched cadmium in the polluted earth in large amount, transfers the cadmium upward to the overground part; when plants grow to the height of between 30 and 40 centimeters or the blossom time, the plants are integrally removed and sold as commercial ornamental flowers or properly treated so as to absorb and remove a large amount of the cadmium from the earth; and by repeatedly planting the flower plant and repeating the process, excessive cadmium in the polluted earth can be continuously extracted until the content of the cadmium achieves the environment safety standards. The method has the advantages of small engineering quantity, no destruction to physicochemical property of the earth, no secondary pollution, beatifying environment while treating the polluted earth, and the like.

The invention relates to phytoremediation technology for organic poison polluted soil, in particular to a method for restoring petroleum hydrocarbon polluted soil by utilizing a plant, namely balsamine. The balsamine is annual herbal flower, and the biomass is as high as 40 to 100 centimeters; petroleum hydrocarbon pollutant in the soil is degraded through the growth process, the development process, the blooming process and the fructification process of plant, namely the whole growth phase of the plant due to the action of root exudates and rhizosphere microorganisms of the plant and soil enzyme, and the petroleum hydrocarbon pollutant which pollutes the soil can be continuously degraded until the pollutant content of the soil meets the environmental safety standard by repeated planting of the plant and repeated implementation of the processes. The method has the advantages of small damage to the environment, no need of treatment of the scene, no damage of the physicochemical properties of the soil, no secondary pollution, low cost, suitability for large-scale operation, pollution treatment and simultaneous environment beautification and so on.

A method for controlling the pollution of As to soil and water features that the pteridophytes able to collect As, such as Pteris oshimensis, P. fauriei, P. aspericaulis and P. multifida, are planted in the soil or water to be controlled for absorbing the As from soil and water, and their plant stems on the ground are periodically harvested.

The invention discloses a method for renovating soil suffered from multiple pollution of cadmium, lead and arsenic with an ornamental plant of ligustrum malongense. The soil polluted by cadmium, lead and arsenic is soil suffered from composite pollution of one or more of cadmium, lead and arsenic, wherein the cadmium, lead and arsenic belong to heavy metal. The method includes the following steps that firstly, seedlings of the ligustrum malongense are selected and arranged in the soil suffered from cadmium, lead and arsenic in a cuttage mode; secondly, watering is performed every day so as to keep the moisture content of the soil; thirdly, rotten stable manure, urea and three-nutrient compound fertilizer are added and used as base fertilizer, and urea is sprayed in due time; fourthly, after the ligustrum malongense matures, the ligustrum malongense is wholly removed from the soil, the second batch of ligustrum malongense is planted, and the steps are repeated until all the heavy metal pollutants in the soil reach the environmental safety level. The method has the advantages that investment is small, the work amount is small, secondary pollution cannot be caused, the structure and the original physicochemical properties of the soil cannot be damaged in the renovating process, and biodiversity of the soil is recovered and improved. Being the ornamental plant, the ligustrum malongense can play a role in beautifying the environment and has good environmental benefits and ecological benefits.

A process for eliminating the pollution of Pb, Zn and Cd to said and water by use of arabis paniculata features that the Arabis paniculata is planted in the polluted sol or water for absorbing Pb, Zn and Cd. When their concentrations in the plant reach a certain value, the plant on the ground is cut out and its root is retained for growing the plant no the ground and further cutting it out.

The invention relates to environmental remediation technology for organic contaminated soil, specifically to a phytoremediation method of remedying petroleum hydrocarbon contaminated soil by using the ornamental plant Portulaca Grandiflora L. According to the invention, degradation of target petroleum hydrocarbon (TPH) in contaminated soil is promoted by using the absorption action of the plant Portulaca Grandiflora L. itself and degradation effects of root exudates and rhizospheric microorganisms of Portulaca Grandiflora L. When the plants of Portulaca Grandiflora L. are mature, the plants can be integrally removed from soil and sold as goods; it is not necessarily to remove the plants. Through repeated plantation of Portulaca Grandiflora L. and repeated absorption action and degradationeffects of Portulaca Grandiflora L., petroleum hydrocarbon pollutants in contaminated soil can be continuously reduced until the content of the pollutants reaches national environment standard or ecological safety level. The method has the advantages of environmental beautification, no need of disposal of planted areas, physical and chemical properties not destroying soil, no secondary pollution,low cost, appropriateness to large scale operation, treatment of pollution, improvement of environment, etc.

The invention relates to phytoremediation technology for treating polluted environment, in particular to a method for repairing and treating the earth polluted by cadmium by using a flower plant, namely maidenhair. The method utilizes root systems of the cadmium ultra-enriched flower maidenhair to absorb the enriched cadmium in the polluted earth in large amount, transfers the cadmium upward to the overground part; when plants grow to the height of between 30 and 40 centimeters or the blossom time, the plants are integrally removed and sold as commercial ornamental flowers or properly treatedso as to absorb and remove a large amount of the cadmium from the earth; and by repeatedly planting the flower plant and repeating the process, excessive cadmium in the polluted earth can be continuously extracted until the content of the cadmium achieves the environment safety standards. The method has the advantages of small engineering quantity, no destruction to physicochemical property of the earth, no secondary pollution, beatifying environment while treating the polluted earth, and the like.